@Aashish_Tahlan You have provided an incorrect expiry date. For ICICI, you need to consider the monthly expiry, with the nearest expiry being February 27, 2025.
Try using below curl
curl -X 'GET' \
'https://api-v2.upstox.com/v2/option/contract?instrument_key=NSE_EQ%7CINE090A01021&expiry_date=2025-02-27' \
-H 'accept: application/json' \
-H 'Authorization: Bearer {auth_token}'
Thanks